Thermal electric images

摘要

This disclosure relates to thermal electric images which may form Informational Images such as landing zone markers, drop zone markers, vehicle markers, road markers, covert signs, notices, directions and the like, and may also be used to form thermal targets which may be used as training aides for weapons and other devices that are equipped with thermal imaging equipment.

主权项

1. A covert sign to display an informational thermal image comprising:
a non-conductive underlying base material; multiple and different thermal image patterns formed on said non-conductive underlying base material, wherein said multiple and different thermal image patterns are formed of said at least one conductive ink; a source of electric power; wherein said multiple and different thermal image patterns may be selectively activated to change the informational thermal image, wherein each of said multiple and different thermal image patterns comprise a complete electric circuit when the source of electric power is connected thereto and when the source of electric power is connected, this allows a flow of electric current to said at least one conductive ink and forms said multiple and different thermal image patterns being supplied with electric current and wherein said source of electric power has settings to adjust said flow of current to maximize visibility of said multiple and different thermal image patterns and compensate for variations in ambient temperature.